Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 102, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 2, 2022, 4:48 PM EDT for Chester County, Pennsylvania. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 2, 2022, 4:48 PM EDT (20:48 UTC)
- Expired
- Jul 2, 2022, 5:12 PM EDT
- In force
- 24 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Chester County, PA
The radar
The Dover AFB radar (KDOX), 115 km from the middle of the area, began a volume at 20:50 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 2, 3:02 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 8.8 hours before the alert went out and 157 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 499 J/kg
- Mixed-layer CIN
- -137 J/kg
- Mixed-layer LCL
- 1039 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
188
WUUS51 KPHI 022048
SVRPHI
PAC029-022130-
/O.NEW.KPHI.SV.W.0102.220702T2048Z-220702T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
448 PM EDT Sat Jul 2 2022
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southwestern Chester County in southeastern Pennsylvania...
* Until 530 PM EDT.
* At 448 PM EDT, a severe thunderstorm was located over Oxford, or 12
miles northwest of Newark, moving east at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to
roofs, siding, trees, and power lines is possible.
* Locations impacted include...
Oxford, West Grove, Mount Vernon, Kemblesville, Landenberg, North
Star, Avondale and Toughkenamon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3982 7603 3983 7602 3985 7602 3983 7575
3973 7576 3972 7577 3972 7605
TIME...MOT...LOC 2048Z 278DEG 13KT 3975 7597
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RCM2 follow-up statements
373
WWUS51 KPHI 022059
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
459 PM EDT Sat Jul 2 2022
PAC029-022130-
/O.CON.KPHI.SV.W.0102.000000T0000Z-220702T2130Z/
Chester PA-
459 PM EDT Sat Jul 2 2022
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR SOUTH CENTRAL CHESTER COUNTY...
At 459 PM EDT, a severe thunderstorm was located over Blake, or 9
miles northwest of Newark, moving east at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Oxford, Kemblesville, Landenberg, North Star and Toughkenamon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3978 7600 3979 7598 3980 7590 3982 7575
3973 7576 3972 7577 3972 7598
TIME...MOT...LOC 2059Z 278DEG 13KT 3974 7592
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RCM071
WWUS51 KPHI 022112
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
512 PM EDT Sat Jul 2 2022
PAC029-022122-
/O.CAN.KPHI.SV.W.0102.000000T0000Z-220702T2130Z/
Chester PA-
512 PM EDT Sat Jul 2 2022
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL CHESTER COUNTY
IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
northern Delaware...and southeastern Pennsylvania.
LAT...LON 3978 7600 3979 7598 3980 7590 3982 7575
3973 7576 3972 7577 3972 7598
TIME...MOT...LOC 2110Z 278DEG 13KT 3973 7586
$$
RCMThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 2, 3:45 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 60 min |
| Jul 2, 4:50 PM EDT | Areal Flood Advisory | PHI | Chester | 26 min |
| Jul 2, 5:16 PM EDT | Flash Flood Warning | PHI | Chester | 4 hr |
| Jul 2, 5:19 PM EDT | Special Weather Statement | PHI | Chester | 56 min |
| Jul 2, 7:11 PM EDT | Special Weather Statement | PHI | Berks | 64 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2022Every severe thunderstorm warning in 2022
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.